The Eagles go into tonight's second leg with a 1-0 lead won in South London last week, courtesy of Jean-Philippe Mateta’s second-half header at Selhurst Park.
For today's match, there are three adjustments from the team which drew 1-1 against Nottingham Forest on Sunday.
Tyrick Mitchell and Justin Devenny move to the bench, with Will Hughes missing from the squad, as Glasner confirmed in his pre-match press conference yesterday.
Into the side come Borna Sosa, Jefferson Lerma and Daichi Kamada – the latter’s first appearance since the Community Shield at Wembley.
Norwegian Cup holders Fredrikstad, meanwhile, are unchanged from last week's defeat at Selhurst Park.
The winners over two legs will advance to the Conference League league phase proper.
Palace: Henderson (GK), Muñoz, Richards, Lacroix, Guéhi, Sosa, Lerma, Wharton, Sarr, Kamada, Mateta.
Subs: Matthews (GK), Benítez (GK), Mitchell, Clyne, Cardines, Devenny, Esse.
Fredrikstad: Borsheim (GK), S. Owusu, Fredriksen, Woledzi, Eid, Metcalfe, L. Owusu, Sorlokk, Molde, Ohlenschlaeger, Holten.
Subs: Ovretveit (GK), Langbraten (GK), Okpaleke, Rafn, Hummelvoll-Nunez, Bjartalid, Kvile, Begby, Shein, Skogvold, Solberg, Granaas.
Match Details
Fredrikstad v Crystal Palace
- Thursday, 28th August
- 17:00 BST / 18:00 CET local time
- Conference League
- Fredrikstad Stadion
- Live on Palace TV+.